Good evening all. I fell into the trap of purchasing some pretty little yellow with black stripes damsels that have grown into monsters. I need to remove them and soon. Have tried a fish trap but the they stay far away even after the trap has been in the aquarium for a good while. We all know how difficult it is to net a fish in a reef tank. Has anyone every gotten drastic and emptied most of the water into containers to get the fish out and then put all the water back. Is this a safe plan or will my growing corals suffer? Any suggestions would be greatly appreciated. Thanks in advance.